Sound-reproducing machine



May s, 1923. '1,454,134

A. G. NYQUIST SOUND REPRODUCING- IACHINZ Fil'ed Jan. 14, 1921 5SheelZS--Sheei'l 4 A. G. NYQUIST SOUND REPRODUCING MACHINE Filed Jan.14, 1921 5 Sheets-Sheet 5 i To all whom. t may concemt.'

VPatented May 8, 1923.

' UNITED srAras 1,454,134 PATENT QFFIC'E.

y ALBERT G. NYQUIST, F MINNEAPOLIS, MINNESOTA; HILDA L. NYQUISTADMINISTRA- TBIX 0F SAID ALBERT G. NYQUIST, DECEASED.

SOUND-REPRODUCING MACHINE Application filed January 14, 1921.

Be it known that I, ALBERT G. NYQUIsfr, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State -ofMinnesota, have linvented vcertain new and useful Improvements inSound-Re- I and supported about a central point, the ma- Slt producingMachines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

rlhis invention relates to sound reproduc ing machines, andpart-icularly, to such a machine in which are supported a plurality ofrecords which are adapted to be individually selected and played. It isan object of this'invention to construct such a machine in which aplurality of disk records are grouped have the machine. electricallydriven and electrically controlled in the selection of records and thecontroller can therefore be connected to the machine by a suitableiexible cable of any desired length.

Another object of the invention is to control the machine by a motor ofspecial design which co-operates in a novel way with the selectingmechanism.

Still another object of the invention is to mount the sound box so thatthe same is disosed in a plane parallel to the records, the atter beingpreferablymounted in radial vertical planes, and the sound box beingfurther' equipped with means so that it can co-operate with the recordon either side thereof.

These and other objects and l advantages of the invention will becomeapparent from the following description made in connection with theaccompanying drawings in` which like reference characters refer to thesame parts throughout the different views and in which. l

Fig. 1 is a. central vertical section of the re, reducing machine;

ig. 2 is a sectional plan view on the line 2 2 of Fig. l, the machinecarrying less than its capacity of records;

Fig. 3 is a sectional plan view ofi/apart of the device taken on theline 3-3 ofFlg. 1;

Figs. 4 and 5 are sectional elevationstaken Serial No. 487,184.

0n the line 4 4 of Fig; lulooking in the direction .of the arrowsshowing the parts in different positions;

Fig. 6 isl a diagrammaticview of the motor windings used with themachine;

Figs. 7 and 8 are sectional elevations taken on the line 7-7 of Fig. 1,said views showing theparts in di'erent positions;

Fig. 9 isl a front elevation of the reproducer;

Fig. 10 is a side elevation of the same; Fig. 11 isa sectional plan viewof the same taken substantially on the line 11--11 of .f

Fig. 9;

gig. 1 2 is a plan view of the controller;

Fig. 13 is a central longitudinal section ofl the controller.

Fig. 14 is a wiring diagram of the controller and sound reproducingmachine.

Referring to the drawings, the reproducing machine comprises a suitablebase member 1 in the form of a. circular .box and on the top of which iscentrally mounted a fixed tube 2.' A second tube 3v is mounted forrotation within the tube 2 and supported by a suitable flange at the topthereof or by an antifriction bearing. The tube 3 carries at its bottoma gear membera which -is illustrated as made integral with the tube,although the same may be made separated and attached to the tube by anysuitable securing means. The tube 3 has an opening extendingtherethroughnear its upper end and. a pair of arms 5 and 6 are disposed at eitherside thereof and pivoted for vertical swinging movement on a pivotmember 7 passing through the sides of said tube. These arms are providedat one Jend, which will be designated as the rear end, withcounterweight members 5a and 62 A shaft,l Sd is mounted between spacedwebs at the upper portion of the tube 3 andthe tone arm 9 is rigidlymounted onthis shaft, the'shaft being rotatably mounted so that the arm3 can swing laterally. The tone arm 9 has a counterweight rod 9a securedtheretowhieh is provided with suitablyr adjustable counterweight membersoutwardly to a point over the arms 5 and 6,

and said arm 10 has secured to its underside spaced springs 11 and 12which depend therefrom and are arranged to normally contact the outersides of arms 5 and 6, respectively.

eov

Mounted for rotation on the pivot 7 are a pair of spaced pulleys 13,these pulleys bemg secured together for common rotation, and also havingsecured thereto an adjacent pulley'. 14." An electric motor 15- isrigidly secured to and carried at the lower s1 e of gear t, and thismotor has a driving pulley 16 at one end of its .armature shaft.- YAbelt 16a passes around. this pulley 16 and over vthe pulley 14, which isthus driven from the motor 15.* A belt'13 passes over pulley 13 and overa pulley .I 17 mounted on a shortv shaft secured to the arm 5. Pulley,belt 18" passes Aover the pulley pulley 17 'to rotate' therewith, and a18 and over a pulley 20 mounted ona s ort shaft secured in the end ofarm 5, and a pulley 21 is fixed to thejpulley 20 to rotate therewith.

The belt 13'El 1s a'straight or open belt and a cross belt 14 passes-over the other pulley 13 and over a pulle 17 also mounted on a Y shortshaft secured in the arm 6, in substantial alignment with the armcarrying pulleys 17 and 18. A' ulley 18 and another pulley 19 are secureyto the pulley 17 to rotate therewith, and a belt 22 passes vover thepul- 18 and over a pulley 2()a which is mountle eilon a short shaftsecured in the end of the -arm 6.,- A pulley 21 is fixed to pulley 20ato rotate therewith. By reference to Figs. land 3, it'will be seen thatthe pulleys 19 and 19 are of' larger diameter than the pulleys 21- and21"'.` A yoke member 23 passes around the tone arm 9 and is providedwith a cross piece 24: at 4its lower end which is hinged 4to supportingmembers 25 secured to the outer side of the arms 5- and 6, respectively.A-cable member 26 is secured to .an equalizing arm 27, and .cables 28are secured to the y outer ends of this arm and `.to the inner side ofthe'. arms 5 and 6. The cable 26 passes down inside of tube 3 over asmall sheave secured adjacent an opening therein and is secured atitslower endto one end of a lever 29 whihh is pivoted to the lower part ofthe base 1. "The lever 29 is secured at its other end tothe lowerfend ofan armature 30 of a gr meer with uw aan or the secured tothe top of basemember 1 circumterentially about thev outer edge thereof.

' 'lhe records, as indicatedin Fig'. 2, are sup- 'ported in thesebrackets in vertical planes, and these records are provided. at theircenters withl small shafts which project from. .each side thereof andareadapted to seatin bearing grooves 33, and 33 formed inthe brochet 33.'lhese brachets are designed to s.`18 and 19 are secured. to tlieessaies support records ot diderent diameter, the small or ten inchrecords bein supported in the upper groove 33b whilev the larger ortwelve inch records have their `central shaft disposed in the roove 33,'lhe machine is shown as provi ed with the usual amplifyoscillate onpivots 38 which entend outward from the rcproducer case. The b'oclr 37is held in positionby a spring 37, circular in cross section, which liesin a groove formed in the outer edge of the block and the ends of whichare fastened to the sides ,ci the reproducer case by suitable screws orother fas" tening means. Near eachend of block 37 is formed a diagonalhole and these holes are adapted to receive the Styli or needles 39, thesame being held in place by suitable small thumb screws 40. lt will benoted that the needles project-in opposite directions. ln order tofacilitate the p or needle in the buter turn of the playing groove ofthe record when commenclng the playing of the same, brushes 41 areprovided which are held in place by brush holders 42 secured to thesides of the reproducer casing in a manner so that they will not makecontact with the=sides of the block 37.

The operationof the machine, as far as described, will now be give Thearms 5 and 6, to et rwith the tone arm 9 are adapted to swung about thecentral axis so as to be brought into desired position relative to anyone of the supported records. The pulleys 19, 19, 21 andA 21@ as showninllgs. 3, d and 5, are provided with peripheral grooves and one otthese pulleys is brought into contact with the desired recordjwhichengag in the groove thereof and is lirictionally driven forplaying by the pulley, the pulley being driven through the descrimd beltconnections from the motor 15. @ne of the arms 5 or 6 will be properlypositioned by the controller, to be later aligned with the record. 1t mabe here acing oi ,the stylus lillV described, with apulley thereon pnoted that, as can be seen from 'g. 1, the l smaller pulleys 21 and 21will come, in contact with the smaller record sup rted on arms 33, whilethe larger pulleys 9 and 19 will come in Contact with the larger withthe records, the solenoid 31 will be, atuated and the armature 30 willbe drawni upwardly therein. 'lhis will draw down'- wardly uponthecable26 and the lever 32 will,` at the same time lock the gear in againstrotation, so that the driving pulleys cannot swing out of alignment withthe record. The cable 26 will pull downwardly upon the equalizer bar 27.As long as no obstruction is offered to either arm 5 or 6, the arms willmove downwardly toether. When the ,pulley comes in contact wlth therecord, however, for instance, the ulley on arm 5, said arm will bestopped. 1e other arm 6, however, will continue to move downwardly andwill be withdrawn from contact with its spring 12. As above stated, thesprings 11 and 12 bear on the outside of arms 5 or 6. As long as botharms are in contact with these springs,l there will be no motion of thearms 'or tone arm 9 laterally.- W'hen one arm is withdrawn below one ofthe springs, however, the other spring will react against the other armand, asjust described, this arm being in contact with the record andheld from rotation and also being held from rotation by lever 32, thisreaction of the spring will move the tone arm 9 toward the opposite sideof the arm 5. The stylus or needle will thus be brought against ,theside of the record.' When the arm 6 continues to move down, the member.

25 secured thereto, will tilt the yoke 23, as shown in Fig. 4, and thiswill assume the position shown in said figure. Owing to the shape of thetop` of the yoke, the tpne arm will thus be held in position. All fourof thepulleys, 19, 19, 21 and 21a arel constantly driven when the recordis being.

played, all except the one in contact with the record running idle. Itwill also be noted that pulleys on one of the arms are for driving therecords when one side of the same is rplaced, while the pulleys on theother arm are for drlving the records when thelother side thereof isbeing played,

-the crossing of the belt 14 causing the records to be driven in theproper direction.

' The diameters of the pulleys are also de.-

signed to give'the proper peripheral speed to the different sizedrecords. j

The machine illustratedis desi ed to carry fifty records, .although itwil be un-4 derstood that bv correspondingly changing the parts' adifferent number will be carried. There will thus be one hundredselecting movements or positions and each of these selectinfr movementswill be equal'to one half, the distance between two adjacent records.When the pulleys 19 or 21 are in alignment with the record therein, the

'l pulleys 19 and 21 are in a. position inter- ,mediate the records.

One ofthe styli or needles 39 will contact with the record on one vsideand the other will contactv with the recordsl on the opposite' side. The

l'brushes 41 are held adjacentthe points of the needle and will firstcome into contact with the outside of the playing groove and will bedrawn inwardly thereby and will thus draw the needles into the playingtion whenthe same are releasedl by the breaking of the current in thesolenoid 3L The current for the motor 15 will be supplied throughbrushes 41 making contact with insulated contact rings 4", secured tothe upper face of the gear 4.

The motor used for making the selection of records is designated as .43and'is mounted on brackets secured to the top of base member 1, Thearmature shaft for this motorcarries a inion 44 which nieshes with thegear 4. he selecting motor 43 is of special construction especiallydesigned to cofoperate with the selecting mechanism. As shown in Fig. 6,the motor has two pole armatures 45 and six'ield poles 46, 46, 46", 46,46d, and 46", and is so wound that all of theeld poles have likepolarity, the oppositely located poles being connected in series makingthree separate eld circuits. As shown` in Fig.' 1, one end of theselield circuits is connected to a common commutator brush 47 and theother end of each held circuit is' connected through its separateconductor to one of three segments which are located onthe controller,which -is shown inFigs. 12 and 13 andare designated 'as a, b and c,these segments forming a selector ring. The two poles of the armature 45-Which is located in the controller, and the contact ring e and thencethrough a brush f tosome one of the segments a, .b and c of the'selectorring, also located in the con troller, according to the position of thebrush f.

As shown in Figs. 12 and 13, .the controller Vcomprises a base member 51made of wood or other suitable insulating material and has placedthereon around the'top edge, equally spaced numerals 10, 20, etc., to100. A central bo 52 is formed in the lcontroller body 51 and has asuitable bushing 53.disposed therein. The sleeve 54 of the gear 55rotates in the bushing and inside of the sleeve 54 a sleeve 55 ismounted for rotation, which carries the main dial plate B. The top edgeof this plate is substantially yflush with the -top' edge of thecontroller body 51 and extends closely adjacent iao the inner edgethereof. v'llhe sleeve 57 oi the seeondar dial plate C is mounted forrotation insi el of the sleeve 55B. The sleeve 57 has gear teeth outtherealooutnear its 'upper end with which meshes a gear 59 which iscarried by a stud secured to dial B' andwhich projects through an oening cutin the sleeve. 55a of said dial in or er to mesh with the teethon sleeve 57. The gear 59 meshes with a similar on the stud secured to te plate B, and this latter gear meshes with internal teeth out in thegear 55, the ratio between the gear cut on sleeve 57 and the gear 55being 1 to 10. The gear 55 shown in Figs. 12`and 13, is-also providedvwith teeth on its exterior and these teeth mesh with a pinion 61 whichis attached toa gear 62, both of these gears being mounted oula studsuit ably carried in a small bracket secured .to the controller body,las shown in Fig. 13. The ratio of the ear- 55 and the pinion 61 being115- to 1. 'ghe gear'62 meshes .with a pinion 63 which is attached inany suitable way to the selector disk 641. which is mounted on a stud 65secured in the. controller body. The ratio between the gear .62 andpinion 63 is 3 to 1 and this makes the ratio between gear 55 and pinion63,

brush f, which is shown as yieldingly urged into contact with one of these ents a, b ando and the ringe. The s eeveA 57, as shown, is suitablysecured in the sleeve by a. nut and washer plate. A button 66 is carriedon a shaft which passes through.

the'ppening in 'sleeve 57 and is provided witha pair offannular grooves67 and 68v near its lower end.. The lower groove 68- has in engagementtherewith, the bifurcated y vends'o'fl a pair of pivoted levers 69 and70,

the pivots of which are suitablylocated in the body of the controller,and .the other $6 ends of which rare bifurcated and disposedV receivesthe end'fof an l.shaped plunger member 71A which is 'arra' d to slidera-' dially in a suitably form controller body and 'has van inwardly exeranged'to engage. with the exterior teeth of ar 5.5. As indicated inFig. 12, thememr 71 is urged inwardlyby acoiledpring engaging therewithseated in a radially exs` 'tending mess in the body 51h11 l'ine'with midplunger. "llhe lnitton 66 and., its -'shaft are arranged for verticalmeiprocation and' when the saine are in theirlowt position, asillustrated, 'the member 7l engages groove 67 and the member 71 engagesthe teethoil",Y

ear also carried.V

33%; to 1.- "llhe selector dish 64 carries thel 'trollen The groove 670ithe bottom shaft recess in vthe.

tending projection 71a at its upper end arinserat ear 55. Any movementof either the dials or B or ot gear 55 is thus prevented.. When thebutton 66 is pulledu'pwardly, the plunger 71,will be forced out of thegroove 67 and will' rest on a portion of the shaft bel70 tween thegroovesv 6 7 and 68, the extension 71n thus being disengaged from thegear 55. When the button is thus pulled upwardly, the plunger of theswitch d' is pulled down v by the lever 69 and the clircuit lin said 75switch is closed and current is sent throu h -the segments of theselectorl ring and t e selecting mechanism operated. After the1selection has beenlmade, the button 66 is pulled further up aligning theplunger 7l 80 to engage with thegro'ove 68 which locks the controlleragainst further movement, and at the same time, .through` furthermovement of the plun er or switch d, causes the circuit to be-bro en insaid switch. This e5 final movement of the button 66 closes the circuitin the switch g through the movement offlever 70 and this causes currentto be sent to the solenoid 31 and 'the driving motor 15 which causes therotation of the t0 record selected. Ilhe motor '15 and the solenoid 31are, of course, connected to and controlled by the switch y. When thebutton 66 is depressed to its lowest position, the circuits are brokenin both switches and the controller is locked by means of ex.; tension71C. The dial C, as shown in Fig. 12, co-opell'-` ates with equallyspaced numbers ranging from 1 to 10on dial B and is also provided umwith a small spring plate having a knob 72 connected thereto, said platehaving a de-l pendingl pin.at its outer end adapted to engage .with aseries ot' holes in the top sur.

face of the din B. The dal e can aus. be 1m turned and brought intovarious positions relative 'to the dial B and will be locked in thesepositions by the depending pin. A The .dial B is-also provided with asmall'spring plate having a knob-73 thereon. This plate 150 also has aportion extending therefrom adapted to` engage in notches formed oppo- Ij site the .numerals onthe edge ofthe controller body. Dial Bv will gheused-gto select the pieces on the recordnf groupsloften and the dial Cwill be lused .to select the. indi'l vidual pieces of the group. l Q

'lhe operation of thecontroller in making a selectionis as fo ows:

n is @vident that inthe-aine shea sa- 120' `tionary with regard to the.dial',B'and the.V

'dial B is rotated one chmplete revolution to;v

the right, theselector disk 64'and the brush'f will make 33?;Tcomple'te'revolutions in the same direction.; tween thev gear 5.5 and.pinion 63, as above set forth. As there are three 'segments in theselector ring, there will have been three changes in the circuits foreach revolution of the brushes' f or 160 changes in all.; Re `16519.,"

This being the ratio 'be- 125 50 to t e power line. The armature willnow be held in the position illustrated in F ig. 6, since its poles,have opposite polarity. from that of the field poles 46-.4 6. As thebrush f leaves the segment aand passes on the segment b, the circuitsthrough. field poles 46--46e will be broken and a new circuit es-ltablished through field poles 46? and 46d. This will cause the armatureto move into alignment with these field poles and the same action willtake place when the brush f passes onto segment 0, the circuit thenbeing established through pole 46 and 46e with which the armature willthen align. The armature will thus make one-sixth of a revolution foreach change of circuit and will make 16h revolutions for each revolutionof the dial B; Should the dial B be operated in the reverse direction,it will be seen that motor will follow in that 'direction so that themotor will always keep in step with the controller. As the motor isgeared posi- .tively to the selecting mechanism of the machine, forevery movement of the dial B of 'the controller, the selector arms 5 and6 and the tone arm 9 of the machine will make corresponding movementthrough the pinion 44 and gear 4. Now as above noted, the'dial C isconnected through the gears 59 and 60 to the gear 55 and the ratio is 1to 10 for every revolution of the dial C and the gear 'on its sleeve,and gear 55 will make ,16th of a revolution, and accordingly theselecting motor will make ten moves and will move the selectingapparatus, or in other words, the tonel arm and driving pulleys loverten s aces or selecting positions. A stop is provided for the dial .C tolimit its movement to one revolution. As stated above, the dial B isused to select the groups of ten and the dial C to select the individualpieces of the group. Thus, if it is desired to select orplay piece 75,.on record 38, the dial B will be turned by the knob 73 to the left tobring the pointer of its retaining spring to alignment with the numeral70.-

This dial will then be heldstationary and vthedial C moved by the knob 72 to the right .to bring its retaining spring and oint'er to the numeral5. The motor wil then be turned, as above described, through the cor-Yrect number of revolutions and rotate thel gear 4 to bring the drivingpulley into alignment with thecorrect record.

From the above description, it will be seen that applicant has producedan efficient machine by which any one of a large number of records canbe quickl selected and played and this selection an vplaying controlledfrom a point quite distant from the machine. Itis evident that such amachine will have a large range of use and be desirable in many places.

It will, of course, be understood that vari-l ous changes may be made inthe form, ar-

rangement and details of the' machine with.

out departing from the scope of applicants invention which, generallystated, consists in the matterlshown and described and set forth in theappended claims.

'What is claimed is: i

1. A sound reproducing machine having in combination, means forsupporting a plurality of disk records in vertical positionsubstantially radially about a central point,

and sound reproducing means movable into engagement with any one. ofsaid records for playing the` same.

2. A sound reproducing machine having in combination, means forsupporting a plurality of records in vertical planes radial to: a commoncentral point, and means for 4turning and for playing said recordsmovable into engagement with any one ofthe same.

3. A sound reproducing machine having in combination, means forrotatably sup-v porting a plurality of disk records in vertical positionand radial to a com-mon central point, of turning and playinn` means forsaid records rotatable about said point and movable into engagement withany one of said records.

4. A sound reproducing machine having in combination means for rotatablysupporting a plurality of disk records in verticalv position and radialto a common central point, areproducer carried on a tone arm, and meansfor rotating a record, said tone arm' and means being rotatable aboutsaid common central point and movable Vinto po ysition for playing and`rotating any one of said records. l

5. A sound reproducing machine having supporting means for disk records,said means being constructed and arranged to support diiferent sizedrecords in vertical planes with one point in the peripheries on thedifferent sized records in horizontal alignment.

6. A sound reproducingmachine having.

in combination, means for rotatably supl porting a disk record invertical position and means comprising-a rotating. member engaging theperipheral edge of saxdrecord for rotating the same.

las

7 A sound reproducing machine having in combination', means forsuppprting-aplu rality of disk records in'` vertical position Vsa andmeans movable into v'ei'igagement a'ith any one of said records forrotating the same, comprisin gagii the perip ery of said record. 8.sound reproducing machine having in combination, means ,or sup orting aplurality of disk records of di erent size in vertical planes, and meansfor rotating any one of said records comprising a rotating arm havin aplurality of grooved rotating members t ereon adapted to engagesaidrecords.

9. A` sound reproducing machine having in combination, means for,rotatably supporting a plurality of disk records ofy dinerent diametersin vertical planes, and meansfor rotatingsaid records comprising arotating arm carrying a" luralityofl pulleys, said pulleys being of dierent diameter, and means for driving said pullevs at diilerentrotatablev speeds.'A

10. A sound reproducing machine having in advance of t e sty us.

in combination, vmeans for supporting a Apluraiit of records .ordiderent diameters in lvertical position, ofmeans for rotating saidrecords .comprising a plurality of grooved rota -members adapted toengage the-edge of said recordameans for drivingsaid ro-A tary membersat 'diderent speeds, said means for rotating the records being movableabout a centralpoint so as to 'be brought into engagement with any oneof said records. l

11. A sound reproducing machine .havlin in combination, means supportinga plura ity. of recordsin vertical radial planes,v

and means movable about a xed axis and carryin a reproducen' havingmeans thereon adapte for re roducingthe same. A

- 12. sonndgreprodncing machine having in. combination, means for.supporting a plu` rality 'of dskzrecordsin vertical position, means for'en ging'either side of said records for playing the saine, a singlerepro- 'ducer' carrying said last mentioned means and means for rotatingsaid-records in op-V posite' directions, laccording-to which side oi therecordisplayed. i3. A reproducing machine' having incombination, meansfor supporting. a plurality Aci dish records circumi'erentially'invertical iglance about' a. central point, means mov' 'le' into`engagement with any one 'or said records for playing the same, a mem forsaid records comprising an electric' motor having a number of 5 pairs ofop 'tely dimsposed 'alined field poles of the same lari ,a two-polearmature ada-madre a e with said aid-meter at a grooved wheel forentoengage either'side of said records or poles, and aoontrollerl"oraaid aei inem al 'emrieal i maaien ing in combination, meansforsupporting a plurality of dish records side by side, a reproducerhaving a stylus project at each side thereof, one of which is a apted toenga e one side of the record and the other of w ich is adapted toengage the other side of the adjacent record, and means for sii portinsaid re reducer with the sides su stadntia y para el to the faces ofsaid reeor s.

15. A sound reproducing machine having 17; A sound reproducing machinehaving in combination, means for supporting a plurality of disk recordsin vertical sition radial to a central point, reproducing and drivingmechanism for said records movable about said center and adapted to bebrought into engagement with anyv of-said records` and vmeans for movingsaid reproducing and driving means about said center into alignment withany onevof said records.

18. '.l'he combination setforth in claim 17, and mechanically controlledma ieally actuated means for operating said last meri-4 tioned means inaccordance with the movement-required to reach the ,desired record.

magnetically actuated device" geared tosai and a controller for saiddevice located at somedistance .from the sound-reproducing machine, saiddevice being adapte proportionately to the movement or mid controller.-I

20. The combination set forth in claim 17 and a magnetically actuateddevice for driving said last mentioned means, and a controller,comprising a rotating primary dial and a-.rotating/-secondary dial` vforcon# trolling said device, said controller bein locatedv 'at somedistance from thesoun re producing machine and said device beingadaptedto move promrtionately to the coinf bined' rotary movements ormid dials." 21. The' combination set orth inclaim 17 means fordrivingthe same to move about said point and adapted to bebrought intoalignment with any one of said records, and means 4for moving saidplaying and driving means into such alignment comprising a motor havinga plurality of field poles of the same polarity arranged in op' positepairs, a two-pole armature in said motor adapted to align successivelywith the pairs of.V field poles, a controller comprising a selector ringhaving a plurality of segments, one for each field circuit, a selectorplate carrying a brush movable in enga-gement with said segments, aprimary and Secondary dial graduated for the number of records supportedon said machine, and gearing between said dials, and said selector platehaving a definite relation to the number of field circuits in the motorand the number of records supported.

23. A sound reproducing machine having in combination, means forsupporting a plurality of disk records in vertical planesA radial .to acommon Central point, playing means for said records comprising'a tonearm supported above said records and rotatable about said central point,driving means for said records comprising a plurality of rotatingpulleys mounted on an arm movable about said central point, means forrotating said tone arm and said pul-v ley carrying arms, and means fordriving said pulleys comprising an electric motor.

24. A sound. reproducing machinev having in combination, means forsupporting a plurality of disk records in vertical planes radial to acommon central point, playing means for said records comprising a tonearm supported. above said records and rotatable about said centralpoint, driving means for said records comprising a plurality of rotatingpulleys mounted on an arm movable about said central point, means forrotating said tone arm and said pulley-carrying arms, means -for drivingsaid pulleys comprising an electric motor, and means -for moving saidtone arm and pulleys into engagement with the records.

25. A sound 'reproducing vmachine having in combination', means forsupporting a plurality of disk records in verticalplanes radial to acommon central point, playing means for said records comprising a tonearm supported above said records and rotatable about said central point,driving means for said records comprising a plurality of rotatingpulleys mounted on an arm movable about said central point, means forrotating said tone arm and said pulley carrying arms, means for drivingsaid pulleys comprising an electric motor, and means for movingsaid tonearm and pulleys into engagement With the records comprising a solenoid.

26. A sound reproducing machine having in combination, means forsupporting a plurality of disk records in vertical planes' radial to acommon central point, playing means for said records comprising a tonearm supported above said recordspand rotatable about said central point,driving means for said records comprising a plurality of rotatingpulleys mounted on an arm movable about said central point, means forrotating said tone arm and said pulley carrying arms comprising anelectric motor, means for driving said pulleys comprising an electricmotor, and meansvfor moving said tone arm and pulleys in'to engagementwith the records comprisinga solenoid, said solenoid operating a Ilevel'connected to said pulley carrying arms by flexible means and Aalsooperating'a lever constituting a locking means for said pulley, carryingarms and said tone'arm. v

27. The structure set forth in claim 13, said electrical meanscomprising a number of segments equal tothe number of pairs of saidpoles, and a contact member adapted to successively engage said segmentsbeing connected to said field poles.

28. The structure sct forth in claim 27, sai-d controller devicecomprising a controller handle geared to said electrical means inaccordance with the number of records used and the number of pairs ofsaid field poles. f

In testimony whereof I aiiix my signature.

' ALBERT G. NYQUIST.

